The Use of Activated Carbon from Bintaro Fruit-Shell (Cerbera manghas) as an Adsorbent to Increase Water Quality

Abstract

Bintaro seed is utilized widely as all alternative raw material to make biodiesel and to produce Bintaro fruit shells. In Ihis research, the Billtaro fruit shell \I'as used as an alternative raw material to rnake an activated carbon. Carbon activation lvere relied on 2 (two) factors, chemical activation (H;P04 consentrate) and physics ({ctivation (time a/water vapor steam). Activated carbon as quality indicator was characterized using Indonesia !\ational Standard (SNI 06-3730-1995). TIle best activated carbon is produced from the shell treated with 15% H;P04 . water vapollr steamed in 90 minutes with 9.98% moisture contellt, 9.16% volatile matter, 12.45% ash content, 78.4% fixed carboll, absvlption on 784.498 mg/g iodine, absOlptivn of ]7.73% benzene, and ({bsOIption of 127.705 mg/g methylene blue. The mechanism used for adsOlption was Langmuir isotherm with 0.9691 linearity. The activated carbon was capable to reduce lip to 100% and 86.94% iron and manganase cOllcentrate respectively.